Package org.pentaho.reporting.engine.classic.core.function

Class IsEmptyExpression

java.lang.Object

org.pentaho.reporting.engine.classic.core.function.AbstractExpression

org.pentaho.reporting.engine.classic.core.function.IsEmptyExpression

All Implemented Interfaces:

Serializable, Cloneable, Expression

public class IsEmptyExpression
extends AbstractExpression

Deprecated.

Use a Formula Instead

Checks whether a field is empty. A field is considered empty, if it contains the value 'null', or an string that is empty or only consists of whitespaces or a number that evaluates to zero.

Author:

Thomas Morgner

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
IsEmptyExpression()	Deprecated. Default constructor.

Method Summary

Modifier and Type	Method	Description
String	getField()	Deprecated. Returns the name of the field from where to read the value.
Object	getValue()	Deprecated. Return the current expression value.
void	setField(String field)	Deprecated. Defines the name of the field from where to read the value.

Methods inherited from class org.pentaho.reporting.engine.classic.core.function.AbstractExpression

clone, getDataRow, getDependencyLevel, getInstance, getName, getReportConfiguration, getResourceBundleFactory, getRuntime, isActive, isDeepTraversing, isPreserve, setActive, setDependencyLevel, setName, setPreserve, setRuntime

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

IsEmptyExpression

public IsEmptyExpression()

Deprecated.

Default constructor.

Method Details

getField

public String getField()

Deprecated.

Returns the name of the field from where to read the value.

Returns:

the field.

setField

public void setField(String field)

Deprecated.

Defines the name of the field from where to read the value.

Parameters:

field - the field.

getValue

public Object getValue()

Deprecated.

Return the current expression value.

The value depends (obviously) on the expression implementation.

Returns:

the value of the function.